A lot. That's how many.

Will Leitch the God tackled this this morning: http://nymag.com/intelligencer/2019/10/the-nba-is-still-reeling-from-daryl-moreys-tweet.html

Terrific and brutal last paragraph: "But don’t expect James to speak up on this one. It is one thing to speak out on injustice in our country; you can actually sell more Nike shoes that way. But going after China is just bad business. What NBA players have done by speaking out on social issues in the United States has made an important difference, and it will inspire future generations of players to do the same. But the bottom line is going to come first when it comes to China. Adam Silver has found another issue in which his interests and the interests of his players absolutely align. It won’t do the people of Hong Kong any good. It might make him, and his players, look bad in the eyes of Beto O’Rourke and Ted Cruz, but they don’t buy, or make, enough shoes to matter."

The stars absolutely will not, under any circumstances, go against China. Because there's waaaay too much money to be made.

So the NBA can't go against China, because they can't go against their stars. Money talks. Unless America as a whole stops going to games/buying merch/watching games/etc over this, nothing will change. And there's a zero percent chance that happens.